Home / 12,084.08-16,688.66-8,316.95

Finding the Fourth Proportional to 12,084.08, 16,688.66 and 8,316.95

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Solution

The fourth proportional to 12,084.08, 16,688.66 and 8,316.95 is: 11,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,084.08 : 16,688.66 = 8,316.95 : x
  2. Step 2: Convert to fraction form
    12,084.08/16,688.66 = 8,316.95/x
  3. Step 3: Cross multiply
    12,084.08x = 16,688.66 × 8,316.95
  4. Step 4: Simplify right side
    12,084.08x = 138,798,625.76
  5. Step 5: Solve for x
    x = 138,798,625.76/12,084.08
  6. Step 6: Final answer
    x = 11,486.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.